App Engine Offline Statistics Estimator

Description and Terms of use
The goal of this tools is to provide missing Admin console functionality for Google App Engine Premier customers. This tool will allow you to estimate and manage your current usage cost, reflecting your negotiated usage rates. This chrome extension is an offline tool as it doesn’t share any information with any other web application. As this tool is not developed by Google, you must not contact Google with information obtained from this tool, or with regards to the tool itself.
Please find below a summary of the features offered.
Version supported: Google App Engine 1.8.1
Features
-estimation of the billing prices (history) on your billing history.
-estimation of the billing prices (current day) on your dashboard.
-customization of usage rates / quotes.